Metals And Nonmetals Question Preview (ID: 51800)


Positive And Negative Ions. TEACHERS: click here for quick copy question ID numbers.

The element which has atomic number 12 is considered from
a) metals
b) nonmetals
c) noble gases
d) no correct answer

When an atom of an element loses 1 electron or more, it changes into
a) a negative ion.
b) a positive ion.
c) a neutral atom.
d) no correct answer.

All of the following elements can form positive ions except
a) sodium
b) chlorine
c) magnesium
d) aluminium

The number of energy levels in sodium ion is ......... the number of energy levels in its atom.
a) less than
b) more than
c) equal to
d) no correct answer

When an atom is changed into an ion, the ....... is changed.
a) number of protons
b) number of neutrons
c) number of electrons
d) mass number

The only nonmetal that exists in a liquid state is .....
a) bromine
b) chlorine
c) hydrogen
d) nitrogen

All of nonmetals don't conduct electricity except ......
a) bromine
b) aluminum
c) graphite
d) mercury

In a negative ion, the number of protons is ...... the number of electrons.
a) less than
b) more than
c) equal to
d) no correct answer

The number of ........ determines the type of element and its chemical activity.
a) electrons in the outermost energy level.
b) levels filled with electrons.
c) neutrons
d) protons

The molecule of a noble gas consists of .....
a) two different atoms.
b) one atom.
c) two similar atoms.
d) one or two similar atoms.

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